He obtained his first degree in Business Administration from University of Nigeria, Nsukka, in 1973 and worked as a sub-treasury officer in the Benue Plateau State, Ministry of Finance. In 1976, he obtained a Masters degree in Business Administration from Indiana University, Bloomington, Indiana, U.S.A.
He joined the Nigerian Air Force in 1977 and enjoyed a distinguished career, rising to the position of Director of Finance, before retiring in 1999. He obtained a further degree in Law from the University of Lagos in 2003 and was called to the Nigerian Bar in 2004. Group Capt. Sotubo is now in active legal practice and joined the Board of Interstate Securities Limited in 2007.